CCGPS Mathematics Third Grade Update Webinar Unit 4: Geometry November 5, 2013 Update presentations are the result of collaboration between members of.

CCGPS MathematicsThird Grade Update Webinar

Unit 4: GeometryNovember 5, 2013

Update presentations are the result of collaboration between members of 2012 and 2013 Unit Review and Revision Teams and classroom teachers

Microphone and speakers can be configured by going to:Tools – Audio – Audio setup wizard

Turtle Toms- [email protected] Elementary Mathematics Specialist

These materials are for nonprofit educational purposes only. Any other use may constitute copyright infringement.

WHAT’S NEW IN THIRD GRADE UNIT

4?

Geometry

THE 3RD GRADE WEBINAR TEAM

Lisa Anglea Unity Elementary, Meriwether County

Sarah Marshall Tussahaw Elementary, Henry County

Stella Newkirt Julia P. Bryant Elementary School, Bulloch County

THEY LOOK THE SAME…SO, HOW HAVE THE UNITS

CHANGED?

Overall Revisions Areas of Concern

Unit 4 Concepts Resources

OVERALL REVISIONS

Task Table Standards for Mathematical Practice (SMP’s) FAL’s Common Misconceptions Number Talks

Please see unit 1 and unit 2 webinars for more details on these revisions

OLD UNIT 5 NEW UNIT 4

Same unit, Different location Inserted a Shapes FAL Lesson & CTE Task Moved perimeter from measurement to unit

4

ATTRIBUTES OF SHAPES FAL

Table found in Unit Overview Suggested Placement

**For more information on FALs, refer to the FAL webinar on georgiastandards.org

A WHOLE LOT OF GARDEN HOSEA CAREER-BASED TASK

Designed to demonstrate the integration of the Common Core and Career and Technical Education knowledge and skills.

Realistic applications that combine mathematics and CTE content.

WHAT’S IMPORTANT IN UNIT 4?

Identifying and describing properties of two-dimensional shapes in more precise ways using properties that are shared rather than the appearances of individual shapes.

Partition shapes into equal shares of halves, thirds, fourths, sixths, and eighths.

Find the perimeter of objects (ex. Finding missing side lengths, different perimeters given fixed area)

Understanding difference between area and perimeter

IDENTIFYING SHAPES IN MORE PRECISE WAYS…WHAT DOES “MORE PRECISE” MEAN?

Each level describes the thinking process used in geometric context.

Information taken from: Teaching Student-Centered Mathematics, 2nd Edition written by John A. Van de Walle, et. al

Elementary Students are in Level 0-1

PARTITIONING SHAPES INTO EQUAL SHARES

Students are exploring region models other than the typical circle or rectangle

When partitioning a whole shape into parts, it is important to understand that the size of the parts must be equal, but the shape of the parts do not have to be the same.

DIFFERENTIATING BETWEEN AREA AND PERIMETER

Van de Walle states that students struggle with knowing the difference between perimeter and area. The perimeter tasks in this unit are designed to help students discover this difference by connecting perimeter of polygons to measurement.

The Relationship between Area and Perimeter

IN MY CLASSROOM…

AREAS OF CONCERN

Students should classify shapes by attributes and by drawing shapes that fit specific categories.

Students should be able to develop a conceptual understanding of perimeter. Students who develop this understanding will be less likely to confuse area and perimeter.

RESOURCES Lesson for the teacher to learn more about teaching

Geometry to elementary students. The lesson includes ideas for lessons, video of classrooms, etc. http://www.learner.org/courses/learningmath/geometry/session10/index35.html

Wikispace-all the math goodness you need (except for the frameworks) is kept on the math wikispace provided by the GaDOE. http://ccgpsmathematicsk-5.wikispaces.com/

Please sign up for the Mathematics K-5 list serve- [email protected]

Van De Walle- fresh off the press there is a new edition that is aligned to CCSS

One of the best websites out there! http://www.illustrativemathematics.org/standards/k8

FeedbackWhat it looks like:

http://elschools.org/student-work/butterfly-drafts

Thank You! Please visit http://ccgpsmathematicsk-5.wikispaces.com/ to share your feedback, ask

questions, and share your ideas and resources!Please visit https://www.georgiastandards.org/Common-Core/Pages/Math.aspx

to join the K-5 Mathematics email listserve.Follow on Twitter!

Follow @GaDOEMath

Turtle TomsProgram Specialist (K-5)[email protected]

These materials are for nonprofit educational purposes only. Any other use may constitute copyright infringement.